android - 如何使 GifImageView 居中
问题描述
我已经创建了一个LinearLayout内部 a ScrollView，其中有几个GifImageView穿过屏幕horizontal，但它们不是centered。显示GifImageView在屏幕左侧而不是中心。
已尝试
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="@color/colorPrimary"
android:layout_gravity="center">
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="match_parent"
android:gravity="center"
android:orientation="horizontal">
<ImageView
android:layout_gravity="center"
android:layout_width="200dp"
android:layout_height="200dp"
android:src="@drawable/gold_coin"/>
</LinearLayout>
<LinearLayout
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:orientation="horizontal"
android:gravity="center">
<!--<ImageView-->
<!--android:id="@+id/d9"-->
<!--android:layout_gravity="center"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<pl.droidsonroids.gif.GifImageView
android:layout_gravity="center"
android:id="@+id/d9"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!--<ImageView-->
<!--android:id="@+id/d8"-->
<!--android:layout_gravity="center"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<pl.droidsonroids.gif.GifImageView
android:layout_gravity="center"
android:id="@+id/d8"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!--<ImageView-->
<!--android:id="@+id/d7"-->
<!--android:layout_gravity="center"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<pl.droidsonroids.gif.GifImageView
android:layout_gravity="center"
android:id="@+id/d7"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!--<ImageView-->
<!--android:id="@+id/d6"-->
<!--android:layout_gravity="center"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<pl.droidsonroids.gif.GifImageView
android:layout_gravity="center"
android:id="@+id/d6"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!--<ImageView-->
<!--android:id="@+id/d5"-->
<!--android:layout_gravity="center"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<pl.droidsonroids.gif.GifImageView
android:layout_gravity="center"
android:id="@+id/d5"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!--<ImageView-->
<!--android:id="@+id/d4"-->
<!--android:layout_gravity="center"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<pl.droidsonroids.gif.GifImageView
android:layout_gravity="center"
android:id="@+id/d4"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!--<ImageView-->
<!--android:id="@+id/d3"-->
<!--android:layout_gravity="center"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<pl.droidsonroids.gif.GifImageView
android:layout_gravity="center"
android:id="@+id/d3"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!--<ImageView-->
<!--android:id="@+id/d2"-->
<!--android:layout_gravity="center"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<pl.droidsonroids.gif.GifImageView
android:layout_gravity="center"
android:id="@+id/d2"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!--<ImageView-->
<!--android:id="@+id/d1"-->
<!--android:layout_gravity="center"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<pl.droidsonroids.gif.GifImageView
android:layout_gravity="center"
android:id="@+id/d1"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
<!--<ImageView-->
<!--android:id="@+id/d0"-->
<!--android:layout_gravity="center"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<pl.droidsonroids.gif.GifImageView
android:layout_gravity="center"
android:id="@+id/d0"
android:layout_width="wrap_content"
android:layout_height="wrap_content" />
</LinearLayout>
<!--<pl.droidsonroids.gif.GifImageView-->
<!--android:layout_gravity="center"-->
<!--android:id="@+id/GifImageView1"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<ImageView
android:layout_gravity="center"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:src="@drawable/png_new"/>
<Button
android:id="@+id/btnAutoCrush"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="@drawable/auto_crush_button" />
<Button
android:id="@+id/btnEmotionVictory"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="@drawable/emotion_button" />
<Button
android:id="@+id/btnSolve"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="@drawable/solve_button" />
<!--<pl.droidsonroids.gif.GifImageView-->
<!--android:layout_gravity="center"-->
<!--android:id="@+id/GifImageView"-->
<!--android:layout_width="wrap_content"-->
<!--android:layout_height="wrap_content" />-->
<Button
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="@drawable/power_emotion"/>
<Button
android:id="@+id/btnFlow"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:background="@drawable/flow_button" />
<Button
android:id="@+id/btnMediate"
android:layout_width="305dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="2dp"
android:layout_marginTop="10dp"
android:background="@drawable/mediate_button" />
<Button
android:id="@+id/btnExercise"
android:layout_width="275dp"
android:layout_height="wrap_content"
android:layout_gravity="center"
android:layout_marginBottom="2dp"
android:layout_marginTop="2dp"
android:background="@drawable/exercise_button" />
</LinearLayout>
</ScrollView>
GifImageView
package com.example.warrenedy.julyfinal;
import android.app.Activity;
import android.content.SharedPreferences;
import android.graphics.drawable.Drawable;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.ImageView;
import android.widget.TextView;
import android.widget.Toast;
import android.content.Context;
import android.content.Intent;
import pl.droidsonroids.gif.GifImageView;
public class TestScreen2 extends Activity implements View.OnClickListener{
Button btnAutoEmotionCrush, btnEmotionVictory, btnSolve, btnFlow, btnMediate, btnExercise;
int counter = 0;
TextView text;
ImageView dr0;
ImageView dr1;
ImageView dr2;
ImageView dr3;
ImageView dr4;
ImageView dr5;
ImageView dr6;
ImageView dr7;
ImageView dr8;
ImageView dr9;
SharedPreferences sharedpreferences;
public static final String MyPREFERENCES = "MyPrefs";
public static final String Count = "Count";
int cnt = 0;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.test_screen2);
sharedpreferences = getSharedPreferences(MyPREFERENCES, Context.MODE_PRIVATE);
if ( sharedpreferences.contains(Count)) {
cnt = sharedpreferences.getInt(Count, 0);
}
dr0=(GifImageView) findViewById(R.id.d0);
dr1=(GifImageView) findViewById(R.id.d1);
dr2=(GifImageView) findViewById(R.id.d2);
dr3=(GifImageView) findViewById(R.id.d3);
dr4=(GifImageView) findViewById(R.id.d4);
dr5=(GifImageView) findViewById(R.id.d5);
dr6=(GifImageView) findViewById(R.id.d6);
dr7=(GifImageView) findViewById(R.id.d7);
dr8=(GifImageView) findViewById(R.id.d8);
dr9=(GifImageView) findViewById(R.id.d9);
btnAutoEmotionCrush = (Button) findViewById(R.id.btnAutoCrush);
btnEmotionVictory = (Button) findViewById(R.id.btnEmotionVictory);
btnSolve = (Button) findViewById(R.id.btnSolve);
btnFlow = (Button) findViewById(R.id.btnFlow);
btnMediate = (Button) findViewById(R.id.btnMediate);
btnExercise = (Button) findViewById(R.id.btnExercise);
btnAutoEmotionCrush.setOnClickListener(this);
btnEmotionVictory.setOnClickListener(this);
btnSolve.setOnClickListener(this);
btnFlow.setOnClickListener(this);
btnMediate.setOnClickListener(this);
btnExercise.setOnClickListener(this);
convertToImg(cnt);
}
@Override
public void onClick(View v) {
if ( v == btnAutoEmotionCrush ) {
Intent i = new Intent(this, com.example.warrenedy.julyfinal.ui.AllEmotionsActivity.class);
startActivity(i);
}
if ( v == btnEmotionVictory ) {
Intent i = new Intent(this, Screen141_Emotion_Selection.class);
startActivity(i);
}
else if ( v == btnSolve ) {
Intent i = new Intent(this, Screen0_Problem_Solver.class);
startActivity(i);
}
else if ( v == btnFlow ) {
Intent i = new Intent(this, Screen5_Flows_Of_Life.class);
startActivity(i);
}
else if ( v == btnMediate ) {
}
else if ( v == btnExercise ) {
}
}
public void convertToImg(Integer cnt)
{
int a = cnt;
int num=0;
int digit=0;
while (a>=1)
{
num=a%10;
a=a/10;
switch(num)
{
case 0:
if(digit==0)
dr0.setImageResource(R.drawable.gold_streak_0_500_clr_624);
if(digit==1)
dr1.setImageResource(R.drawable.gold_streak_0_500_clr_624);
if(digit==2)
dr2.setImageResource(R.drawable.gold_streak_0_500_clr_624);
if(digit==3)
dr3.setImageResource(R.drawable.gold_streak_0_500_clr_624);
if(digit==4)
dr4.setImageResource(R.drawable.gold_streak_0_500_clr_624);
if(digit==5)
dr5.setImageResource(R.drawable.gold_streak_0_500_clr_624);
if(digit==6)
dr6.setImageResource(R.drawable.gold_streak_0_500_clr_624);
if(digit==7)
dr7.setImageResource(R.drawable.gold_streak_0_500_clr_624);
if(digit==8)
dr8.setImageResource(R.drawable.gold_streak_0_500_clr_624);
if(digit==9)
dr9.setImageResource(R.drawable.gold_streak_0_500_clr_624);
break;
case 1:
if(digit==0)
dr0.setImageResource(R.drawable.gold_streak_1_500_clr_625);
if(digit==1)
dr1.setImageResource(R.drawable.gold_streak_1_500_clr_625);
if(digit==2)
dr2.setImageResource(R.drawable.gold_streak_1_500_clr_625);
if(digit==3)
dr3.setImageResource(R.drawable.gold_streak_1_500_clr_625);
if(digit==4)
dr4.setImageResource(R.drawable.gold_streak_1_500_clr_625);
if(digit==5)
dr5.setImageResource(R.drawable.gold_streak_1_500_clr_625);
if(digit==6)
dr6.setImageResource(R.drawable.gold_streak_1_500_clr_625);
if(digit==7)
dr7.setImageResource(R.drawable.gold_streak_1_500_clr_625);
if(digit==8)
dr8.setImageResource(R.drawable.gold_streak_1_500_clr_625);
if(digit==9)
dr9.setImageResource(R.drawable.gold_streak_1_500_clr_625);
break;
case 2:
if(digit==0)
dr0.setImageResource(R.drawable.gold_streak_2_500_clr_654);
if(digit==1)
dr1.setImageResource(R.drawable.gold_streak_2_500_clr_654);
if(digit==2)
dr2.setImageResource(R.drawable.gold_streak_2_500_clr_654);
if(digit==3)
dr3.setImageResource(R.drawable.gold_streak_2_500_clr_654);
if(digit==4)
dr4.setImageResource(R.drawable.gold_streak_2_500_clr_654);
if(digit==5)
dr5.setImageResource(R.drawable.gold_streak_2_500_clr_654);
if(digit==6)
dr6.setImageResource(R.drawable.gold_streak_2_500_clr_654);
if(digit==7)
dr7.setImageResource(R.drawable.gold_streak_2_500_clr_654);
if(digit==8)
dr8.setImageResource(R.drawable.gold_streak_2_500_clr_654);
if(digit==9)
dr9.setImageResource(R.drawable.gold_streak_2_500_clr_654);
break;
case 3:
if(digit==0)
dr0.setImageResource(R.drawable.gold_streak_3_500_clr_648);
if(digit==1)
dr1.setImageResource(R.drawable.gold_streak_3_500_clr_648);
if(digit==2)
dr2.setImageResource(R.drawable.gold_streak_3_500_clr_648);
if(digit==3)
dr3.setImageResource(R.drawable.gold_streak_3_500_clr_648);
if(digit==4)
dr4.setImageResource(R.drawable.gold_streak_3_500_clr_648);
if(digit==5)
dr5.setImageResource(R.drawable.gold_streak_3_500_clr_648);
if(digit==6)
dr6.setImageResource(R.drawable.gold_streak_3_500_clr_648);
if(digit==7)
dr7.setImageResource(R.drawable.gold_streak_3_500_clr_648);
if(digit==8)
dr8.setImageResource(R.drawable.gold_streak_3_500_clr_648);
if(digit==9)
dr9.setImageResource(R.drawable.gold_streak_3_500_clr_648);
break;
case 4:
if(digit==0)
dr0.setImageResource(R.drawable.gold_streak_4_500_clr_650);
if(digit==1)
dr1.setImageResource(R.drawable.gold_streak_4_500_clr_650);
if(digit==2)
dr2.setImageResource(R.drawable.gold_streak_4_500_clr_650);
if(digit==3)
dr3.setImageResource(R.drawable.gold_streak_4_500_clr_650);
if(digit==4)
dr4.setImageResource(R.drawable.gold_streak_4_500_clr_650);
if(digit==5)
dr5.setImageResource(R.drawable.gold_streak_4_500_clr_650);
if(digit==6)
dr6.setImageResource(R.drawable.gold_streak_4_500_clr_650);
if(digit==7)
dr7.setImageResource(R.drawable.gold_streak_4_500_clr_650);
if(digit==8)
dr8.setImageResource(R.drawable.gold_streak_4_500_clr_650);
if(digit==9)
dr9.setImageResource(R.drawable.gold_streak_4_500_clr_650);
break;
case 5:
if(digit==0)
dr0.setImageResource(R.drawable.gold_streak_5_500_clr_643);
if(digit==1)
dr1.setImageResource(R.drawable.gold_streak_5_500_clr_643);
if(digit==2)
dr2.setImageResource(R.drawable.gold_streak_5_500_clr_643);
if(digit==3)
dr3.setImageResource(R.drawable.gold_streak_5_500_clr_643);
if(digit==4)
dr4.setImageResource(R.drawable.gold_streak_5_500_clr_643);
if(digit==5)
dr5.setImageResource(R.drawable.gold_streak_5_500_clr_643);
if(digit==6)
dr6.setImageResource(R.drawable.gold_streak_5_500_clr_643);
if(digit==7)
dr7.setImageResource(R.drawable.gold_streak_5_500_clr_643);
if(digit==8)
dr8.setImageResource(R.drawable.gold_streak_5_500_clr_643);
if(digit==9)
dr9.setImageResource(R.drawable.gold_streak_5_500_clr_643);
break;
case 6:
if(digit==0)
dr0.setImageResource(R.drawable.gold_streak_6_500_clr_630);
if(digit==1)
dr1.setImageResource(R.drawable.gold_streak_6_500_clr_630);
if(digit==2)
dr2.setImageResource(R.drawable.gold_streak_6_500_clr_630);
if(digit==3)
dr3.setImageResource(R.drawable.gold_streak_6_500_clr_630);
if(digit==4)
dr4.setImageResource(R.drawable.gold_streak_6_500_clr_630);
if(digit==5)
dr5.setImageResource(R.drawable.gold_streak_6_500_clr_630);
if(digit==6)
dr6.setImageResource(R.drawable.gold_streak_6_500_clr_630);
if(digit==7)
dr7.setImageResource(R.drawable.gold_streak_6_500_clr_630);
if(digit==8)
dr8.setImageResource(R.drawable.gold_streak_6_500_clr_630);
if(digit==9)
dr9.setImageResource(R.drawable.gold_streak_6_500_clr_630);
break;
case 7:
if(digit==0)
dr0.setImageResource(R.drawable.gold_streak_7_500_clr_615);
if(digit==1)
dr1.setImageResource(R.drawable.gold_streak_7_500_clr_615);
if(digit==2)
dr2.setImageResource(R.drawable.gold_streak_7_500_clr_615);
if(digit==3)
dr3.setImageResource(R.drawable.gold_streak_7_500_clr_615);
if(digit==4)
dr4.setImageResource(R.drawable.gold_streak_7_500_clr_615);
if(digit==5)
dr5.setImageResource(R.drawable.gold_streak_7_500_clr_615);
if(digit==6)
dr6.setImageResource(R.drawable.gold_streak_7_500_clr_615);
if(digit==7)
dr7.setImageResource(R.drawable.gold_streak_7_500_clr_615);
if(digit==8)
dr8.setImageResource(R.drawable.gold_streak_7_500_clr_615);
if(digit==9)
dr9.setImageResource(R.drawable.gold_streak_7_500_clr_615);
break;
case 8:
if(digit==0)
dr0.setImageResource(R.drawable.gold_streak_8_500_clr_647);
if(digit==1)
dr1.setImageResource(R.drawable.gold_streak_8_500_clr_647);
if(digit==2)
dr2.setImageResource(R.drawable.gold_streak_8_500_clr_647);
if(digit==3)
dr3.setImageResource(R.drawable.gold_streak_8_500_clr_647);
if(digit==4)
dr4.setImageResource(R.drawable.gold_streak_8_500_clr_647);
if(digit==5)
dr5.setImageResource(R.drawable.gold_streak_8_500_clr_647);
if(digit==6)
dr6.setImageResource(R.drawable.gold_streak_8_500_clr_647);
if(digit==7)
dr7.setImageResource(R.drawable.gold_streak_8_500_clr_647);
if(digit==8)
dr8.setImageResource(R.drawable.gold_streak_8_500_clr_647);
if(digit==9)
dr9.setImageResource(R.drawable.gold_streak_8_500_clr_647);
break;
case 9:
if(digit==0)
dr0.setImageResource(R.drawable.gold_streak_9_500_clr_617);
if(digit==1)
dr1.setImageResource(R.drawable.gold_streak_9_500_clr_617);
if(digit==2)
dr2.setImageResource(R.drawable.gold_streak_9_500_clr_617);
if(digit==3)
dr3.setImageResource(R.drawable.gold_streak_9_500_clr_617);
if(digit==4)
dr4.setImageResource(R.drawable.gold_streak_9_500_clr_617);
if(digit==5)
dr5.setImageResource(R.drawable.gold_streak_9_500_clr_617);
if(digit==6)
dr6.setImageResource(R.drawable.gold_streak_9_500_clr_617);
if(digit==7)
dr7.setImageResource(R.drawable.gold_streak_9_500_clr_617);
if(digit==8)
dr8.setImageResource(R.drawable.gold_streak_9_500_clr_617);
if(digit==9)
dr9.setImageResource(R.drawable.gold_streak_9_500_clr_617);
break;
default:
Toast.makeText(this,"error", Toast.LENGTH_SHORT).show();
}
digit++;
}
}
public void onResume(){
if (sharedpreferences.contains(Count)) {
cnt = sharedpreferences.getInt(Count, 0);
}
super.onResume();
}
}
解决方案
将 LinearLayout（滚动视图内部）宽度设置为 match_parent，例如 - android:layout_width="match_parent"
原因：-如果宽度为“wrap_content”，“wrap_content”不显示 layout_gravity="center" 属性的效果
<ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:orientation="vertical"
android:background="@color/colorPrimary"
android:layout_gravity="center">
<LinearLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:gravity="center"
android:orientation="vertical">
</LinearLayout>
</ScrollView>
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