Android Studio不显示图片

Question

package com.example.q9722.gaicuo;

import android.content.Intent;
import android.content.SharedPreferences;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.WindowManager;

public class SplashActivity extends AppCompatActivity implements Runnable{

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    getSupportActionBar().hide();
    getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
            WindowManager.LayoutParams.FLAG_FULLSCREEN);
    setContentView(R.layout.activity_splash);
    new Thread(this).start();
}

@Override
public void run() {
    SharedPreferences preferences = getSharedPreferences("app_splash",MODE_PRIVATE);
    if(preferences.getBoolean("splash",false)) {
        try {
            Thread.sleep(3000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        SharedPreferences.Editor editor = preferences.edit();
        editor.putBoolean("splash",true);
        editor.commit();
    }else {
        Intent intent = new Intent();
        intent.setClass(SplashActivity.this,MainActivity.class);
        startActivity(intent);
        finish();
    }
}

}

Answer 1

你是想全屏 横屏显示图片的欢迎页面是吧 我最近也在做
1、布局 把图片全屏显示

 <?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/relative"
    android:layout_width="match_parent"
    android:layout_height="match_parent">

    <ImageView
        android:id="@+id/welcomepic"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"
        android:layout_alignParentTop="true"
        android:scaleType="fitXY"
        android:src="@mipmap/welcome" />
</RelativeLayout>

2、设置全屏 还有横屏
在setContentView之前设置：

         requestWindowFeature(Window.FEATURE_NO_TITLE);
        getWindow().setFlags(WindowManager.LayoutParams.FLAG_FULLSCREEN,
                WindowManager.LayoutParams.FLAG_FULLSCREEN);

在androidmanifest.xml设置横屏

 android:screenOrientation="portrait"

是这样的吧：

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