ImageLoader加载图片

MainActivity:

 private Button bt;
    private ImageView iv;
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        //获取组件id
        bt = (Button) findViewById(R.id.bt);
        iv = (ImageView) findViewById(R.id.iv);

        bt.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View view) {

                DisplayImageOptions options = new DisplayImageOptions.Builder().build();

                //加载图片
                ImageLoader.getInstance().displayImage("https.......",iv,options);
            }
        });
    }

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Application类

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------manifests配置

<uses-permission android:name="android.permission.INTERNET"></uses-permission>
android:name=".MyApplication"