Intent iinent= new Intent(Homeactivity.this,secondactivity.class);
startActivity(iinent);

    Intent in = new Intent(getApplicationContext(),SecondaryScreen.class);    
    startActivity(in);

    This is an explicit intent to start secondscreen activity.

Intent iinent= new Intent(Homeactivity.this,secondactivity.class);
startActivity(iinent);

一件容易的事。

Intent myIntent = new Intent(CurrentActivity.this, NextActivity.class);
myIntent.putExtra("key", value); //Optional parameters
CurrentActivity.this.startActivity(myIntent);

额外的内容可以通过以下方式从另一侧检索:

@Override
protected void onCreate(Bundle savedInstanceState) {
    Intent intent = getIntent();
    String value = intent.getStringExtra("key"); //if it's a string you stored.
}

不要忘记在AndroidManifest.xml中添加你的新活动:

<activity android:label="@string/app_name" android:name="NextActivity"/>

从这个活动启动另一个活动，你也可以通过Bundle对象传递参数。

Intent intent = new Intent(getBaseContext(), YourActivity.class);
intent.putExtra("USER_NAME", "xyz@gmail.com");
startActivity(intent);

在另一个活动(YourActivity)中检索数据

String s = getIntent().getStringExtra("USER_NAME");

实现视图。OnClickListener接口，并重写onClick方法。

ImageView btnSearch;

 @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_search1);
        ImageView btnSearch = (ImageView) findViewById(R.id.btnSearch);
        btnSearch.setOnClickListener(this);
    }

@Override
    public void onClick(View v) {
        switch (v.getId()) {
            case R.id.btnSearch: {
                Intent intent = new Intent(Search.this,SearchFeedActivity.class);
                startActivity(intent);
                break;
            }