Android中一个APP调起另一个APP

private String pacakageName = "jump.test.com.testjumpotherapp02";
private String activityName = "jump.test.com.testjumpotherapp02.MainActivity";

一、方式一

findViewById(R.id.btn01).setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {

        ComponentName componentName = new ComponentName(pacakageName, activityName);
        Intent intent = new Intent();
        intent.setComponent(componentName);
        startActivity(intent);

    }
});

 

二、方式二

findViewById(R.id.btn02).setOnClickListener(new View.OnClickListener() {
    @Override
    public void onClick(View view) {

        Intent intent = new Intent();
        intent.setClassName(pacakageName, activityName);
        startActivity(intent);

    }
});